<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>行内元素</title>
    <style>
        span{
            width: 100px;
            height: 100px;
            background-color: #333;
        }
    </style>
</head>
<body>
<span>家具<strong>服装</strong></span>
</body>
</html>